/////////////////////////////////////////////////////////////////////////////
// Name:        multicell.h
// Purpose:     provide two new classes for layout, wxMultiCellSizer and wxMultiCellCanvas
// Author:      Jonathan Bayer
// Modified by:
// Created:
// RCS-ID:      $Id$
// Copyright:   (c) Jonathan Bayer
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// This was inspired by the gbsizer class written by Alex Andruschak


#ifndef __WX_MULTICELL_H__
#define __WX_MULTICELL_H__

#if defined(__GNUG__) && !defined(__APPLE__)
    #pragma interface "multicell.h"
#endif

#include "wx/gizmos/gizmos.h"

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// The classes are derived from wxSizer
#include "wx/sizer.h"


// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
enum wxResizable
{
    wxNOT_RESIZABLE =           0x00,
    wxHORIZONTAL_RESIZABLE =    0x01,
    wxVERTICAL_RESIZABLE =      0x10,
    wxRESIZABLE =               0x11
};

//---------------------------------------------------------------------------
// classes
//---------------------------------------------------------------------------

//---------------------------------------------------------------------------
// wxMultiCellItemHandle
//---------------------------------------------------------------------------

class WXDLLIMPEXP_GIZMOS wxMultiCellItemHandle: public wxObject
{
    DECLARE_CLASS(wxMultiCellItemHandle);
protected:
    int             m_column;
    int             m_row;
    int             m_width;
    int             m_height;
    wxResizable     m_style;
    wxSize          m_fixedSize;
    int             m_alignment;
    wxSize          m_weight;

public:
    wxMultiCellItemHandle( int row, int column, int height = 1, int width = 1, wxSize size = wxDefaultSize, wxResizable style = wxNOT_RESIZABLE, wxSize weight = wxSize(1,1), int align = wxALIGN_NOT);
    wxMultiCellItemHandle( int row, int column, wxSize size, wxResizable style = wxNOT_RESIZABLE, wxSize weight = wxSize(1,1), int align = wxALIGN_NOT);
    wxMultiCellItemHandle( int row, int column, wxResizable style, wxSize weight = wxSize(1,1), int align = wxALIGN_NOT);
    wxMultiCellItemHandle( int row, int column, int align);
    int             GetColumn();
    int             GetRow();
    int             GetWidth();
    int             GetHeight();
    wxResizable     GetStyle();
    wxSize          GetLocalSize();
    int             GetAlignment();
    wxSize          GetWeight();

private:
    void Initialize( int row, int column, int height = 1, int width = 1, wxSize size = wxDefaultSize, wxResizable style = wxNOT_RESIZABLE, wxSize weight = wxSize(1,1), int align = wxALIGN_NOT);

};

//---------------------------------------------------------------------------
// wxMultiCellSizer
//---------------------------------------------------------------------------

class WXDLLIMPEXP_GIZMOS wxMultiCellSizer : virtual public wxSizer
{
    DECLARE_CLASS(wxMultiCellSizer);

protected:
    wxSize m_cell_count;

public:
    wxMultiCellSizer(wxSize & size);
    wxMultiCellSizer(int rows, int cols);
    ~wxMultiCellSizer();

    virtual void RecalcSizes();
    virtual wxSize CalcMin();
    bool SetDefaultCellSize(wxSize size);
    bool SetColumnWidth(int column, int colSize = 5, bool expandable = false);
    bool SetRowHeight(int row, int rowSize = 5, bool expandable = false);
    bool EnableGridLines(wxWindow *win);
    bool SetGridPen(wxPen *pen);
    void OnPaint(wxDC& dc);

private:
    void GetMinimums();
    int Sum(int *array, int x);

private:
    int *m_maxHeight;
    int *m_maxWidth;
    int *m_rowStretch;
    int *m_colStretch;
    wxSize **m_weights;
    wxSize **m_minSizes;
    int m_maxWeights;
    wxSize m_defaultCellSize;
    wxWindow *m_win; // usually used for debugging
    wxPen *m_pen;

    void DrawGridLines(wxDC& dc);
    void Initialize(wxSize size);
};


// wxCell is used internally, so we don't need to declare it here

class wxCell;

//---------------------------------------------------------------------------
// wxMultiCellCanvas
//---------------------------------------------------------------------------

class WXDLLIMPEXP_GIZMOS wxMultiCellCanvas : public wxFlexGridSizer
{
public:
    wxMultiCellCanvas(wxWindow *parent, int numRows = 2, int numCols = 2);
    void Add(wxWindow *win, unsigned int row, unsigned int col);

    void Resize(int numRows, int numCols);
    int MaxRows()
    {
        return m_maxRows;
    };
    int MaxCols()
    {
        return m_maxCols;
    };
    void CalculateConstraints();
    void SetMinCellSize(const wxSize size)
    {
        m_minCellSize = size;
    };

  /* These are to hide Add() method of parents and to avoid Borland warning about hiding virtual functions */
  void Add( wxWindow *window, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL )
       { wxFlexGridSizer::Add( window, proportion, flag, border, userData); }
  void Add( wxSizer *sizer, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL )
       { wxFlexGridSizer::Add( sizer, proportion, flag, border, userData); }
  void Add( int width, int height, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL )
       { wxFlexGridSizer::Add( width, height, proportion, flag, border, userData); }
  void Add( wxSizerItem *item )
       { wxFlexGridSizer::Add( item); }

private:
    wxWindow            *m_parent;
    unsigned int         m_maxRows, m_maxCols;

    wxSize              m_minCellSize;
    wxCell              **m_cells;
};

#endif



/*** End of File ***/